Expansible-collapsible element



DEC. 10, 1929. H, Q MALLQRY EXPNSIBLE CQLLAPSIBLE ELEMENT Original FiledAug. 51. 1920 Patented Dec. 10, 1929 `UNITED `P"A`TENT OFFICE EAR-RY CJMALLORY, DECEASED, LATE OF BELLPORT, NEW' YORK, ,BY SUERJMALLORY,ADMNISTRATRIX, F BELLPORT, NEXV YORKgSAID HARRY C. MALLORY ASSIGNOR, BYMESNE ASSIGNMENTS, TO AMERICAN RADATOR- COMPANY, OF CHICAGO, ILLI- NCIS,A CORPORATION OF NEWlJERSEY 'EXPANSIBLE-COLLAPSIBLE ELEMENTOriginalfapplieation filed Augustly192,0,` Serial No. 407,207.Paten,t.No..1,570,312, dated January 19, 1926. Divided and thisapplication filed July 25, 1925. Serial No. 46,103.

The invention relates to elastic elements, and the same has for itsobject more particularly to provide an elastic metallic element for usein connection with apparatus or de vices subject to or influenced bytemperature or pressure variations whereby to operate a valve, apparatusor other mechanism.

i Further, said invention has for its object to provide anexpansiblecollapsible f element having a thin metal line, and an endreinforced upon its inner and outer sides whereby to Vgive greaterstrength and rigidity to` said closed end, and to render `said elementreadily attachable to other parts, mechanisms or devices adapted to `beoperated or controlled thereby.

lllurther, said invention has for its object to provide anexpansible-collapsiblc element for 'the purposes speciiied having one`end interiorly and exteriorly` reinforced whereby to permit of saidclosed endbeing conveniently attached or secured to other parts,mechanisms or devices to be voperatedby, orfin connection with saidcXpansible-collapsible element. i i

Further, said invention has for its object to prov-ine anexpansible-collapsiblel element having a thin metal linemand an end`reinforced upon its inner and outer sides by separate reinforcingmembers, and attaching7 means permanently clamped into engagement withsaid end by the reinforcing member disposed upon the outer side of theend of said element.

Other objects Will in part be obvious, and in part be pointed outhereinafter.

To the attainment of the aforesaid objects and ends the inventionconsists in the novel details of construction, and in the combination,connection and arrangement of parts hereinafter more fully described andthen pointed out in the claims.

ln the accompanying drawings forming part of this specification, whereinlike nu merals of reference indicate like parts,

Figure 1 is a side elevation showing one form of expansiblecollapsibleelement constrncted according to, and embodying the said invention;

,Figa 2 isa sectional View taken on the line 2-2sof Fig. l;

Fig. 3 isa bottom vieW, and Fig. 4t is a central verticalsectional Viewshowing a modified form.

.In producing `an i.expansible-collapsible` element embodying thepresent invention thereis iirst formed a cylindrical shell having aclosed end 11. The shell is then subjected to the action of suitabledies whereby to circumfcrentially corrugate its y intermediate or bodyportion 19. to forma seriesof cor rugations or folds 13. Theclosedend11: in the construction.illustrated at Figs. `1, 2 and 3 is `ofsubstantially the saine diameter as the body portion 12, and is providedupon. its inner side with a flat, circular disk 14. The said disk v14is'irmly secured in position by the first `corrugation lformed in theside of the shelladj acent to the closed end 11.

Hcreupon there is taken a shallow reinforcing cap 15 comprising a baselhavingavertial iiange or rinr 17 `and a central depressed or recessedportion 18 provided With an aperture 19, and into said cap is insertedan attaching member 2()` providedavith afiat, circular base 20a havingareduced cylindrical portion or boss 21f extending centrally therefrom.The base 20 of said attaching member is adapted to be received by` thelcentral depressed portion 180i1 said cap,with1thecylindrical portion orboss 21 thereofextending through the aperture 19 in said cap.

`The cap 15.With the attaching member 20 therein is` then fitted` uponthe closed end 1l of the corrugated shell` 10,1 and the `iiange or rimlpressed or rolled lirmly `into engagement 4with the outer side of thefirstcorruga tion W-hichembraces the reinforcing disk la, and thuspermanently secured thereto. The dish;` 14 disposedwithin the closed end11 of the shell 10, and the cap 15` secured to the outer surface of theiirst corrugation jointly serve to interiorly and exteriorly reinforcesaid closed end, and the capil, with its attaching portion E20, servesto reinforce-materiallyithe closed end 11 of the shell 107 and atthesame time said cap secures said attaching member 2O to saidlshell. Y

`In the modified construction illustrated at Fig. 4, theexpansible-collapsible element is constructed essentially, as the mainconstruction, as illustrated at Figsl to .3, inclusive. In the modiiied,Construction the circumferentially corrugated shell 10"1 has its closedend 11"t provided -with a reduced'fportion to form a bossllb withinwhich is secured a reinforcing disk 14, and uponthe outer side ofsaidboss 11b is secured a cap 15a, formed like the cap 15 and containing asimilar attaching member 20.

Theattaching member has its vprojecting portion or boss Z1-recessed soas to permit of said boss being interiorly or exteriorly screwthreadedor otherwise prepared for securement or connection with a valve or otherelement or part to be actuated by or through the corrugated portion ofthe shell.

This application is a division of an earlier ipplication, Serial No.407,207, filed by Harry C; Mallory August 31, 1920, and patented January19, 1926, No. 1,570,312, which latter application is a continuation inpart of an application' Serial No. 833,593, tiled by him lprilf' 22,1914', renewed .December 5, 1919, Serial No. 342,802, and patentedJanuary 25,1921, No. 1,. 6G,472 ,.Y

In this case'no claim is made for the process from which the productherein shown, described and claimed results, as said process constitutesthe subject-matter of said application, Serial No. 407,207, whichresultedin Patent No. 1,570,312, dated January 19, 1926 Having :thusdescribed the said invention what is claimedand desired to secure byLetters Patent' is :f f A y1. An expa'nsible-collapsible elementcomprising a shell having a circumferentially corrugatedbody portion, aclosed end, amember disposed within said end to reinforce the same andretained therein by a portion of said shell extending over andengagingthe edge of saidiniember, a-member engaging the outer lWalloflsaid end, a boss projecting centrally therefrom, and separate meansfor retaining said outer member inengagement with said end,substantially as specified.

.2. An expansible-collapsible element comprising a shell having acircumferentially corrugated body portion, a closedend, a memberdisposed within said end to reinforce the samek and` retained withinsaid end by a portion of said shell extending over the same, areinforcing Ymember arranged exterior-ly of said end engaging with theportion of said shell retaining said inner member in place, a bossprojecting from said exterior member, and means engaging said exteriorreinforcing member and surrounding the boss thereon for securing saidreinforcing member in position upon the Vclosed end of said bodyportion, substantially as specified.

'3.' An` eXpansible-collapsible element comprising Va shell having acircumferentially corrugated body portion, a closed end, a memberdisposed within said end to reinforce the same and retained within saidend by a portion of said shell extending thereover, a member arrangedexteriorly of said end, a boss projecting therefrom, and a flangedmember extending over and around the portion of said shell embracingsaid inner member to reinforce said portion and to secure said exteriormember to said end; said flanged member having an aperture therein toreceive said boss, substantially as specified.

4. An expansible-collapsible element comprising a cylindrical shellhaving a corrugated body portion, a closed end, a boss extendingupwardly therefrom, a reinforcing disk disposed within said shell, areinforcing cap secured upon the outer side of said shell` and arecessed portion in the exposed part of said reinforcing cap adapted toreceive and hold another device or part, substantially as specified.

5. An expansible-collapsible element comprising a cylindrical shellhaving a corrugated body portion, a closed end, a boss extending fromsaid closed end, a reinforcing disk disposed` within said shell andengaged by the wall thereof, a reinforcing cap disposed upon the outerside of said shell having its peripheral portions engaging the part ofsaid shell embracing said reinforcing disk, a central recessed portionon said reinforcingl cap having an aperture therein, and a membersecured in said recessed portion having an outwardly projecting endextending through the aperture in said recessed portion, substantiallyas specified.

Signed at the city of New York, in the county of New York, in the Stateof New York, this 22d day of July, one thousaml nine hundred andtwenty-tive.

SUE R. MALLORY, Admm'm'stmtrz'm of the Estate of Harry 0.

Mallory, Deceased.

